Apparatus for mixing gas or vapor.



No. 797,278. PATENTBD AUG; 15 1905. J1 G. HARPERn APPARATUS FR MIXNG GAS 0R VAPUR.

APPLIOATIQN FILED Nov. 5.1904.

Wt @J5/77a@ CZZY/Qfj n nes-ases nventor..

Amman. u erwan 50,. Pnorouuocmumxus. wAsmuaToN. nV c.

narran JAMES C.

Pdilllltllll lUlllilidlllhi Speccaton of Letters Patent.

Patented Aug. 15, 1905.

Application filed November 5, 1904. Serial No. 231,568.

Be it known that I, JAMES C. HARPER, a citizen of the United States, residing at Rector, in the county o'lv Clay and State of Arkansas, have invented .a new and useful Apparatus lier Mixing Gas or Vapor, of which the following is a specification.

rlhis invention relates to mechanism employed for the mixing ot' gas or vapor, and is designed more especially to produce an explosive mixture employed for internal-combustion engines.

@ne object oil.l the invention is to provide a novel Vform ol mixer 'for thoroughly intermingling carbureted air and atmospheric air in advance of its entrance to the explosionchamber of the engine or delivery to other' points of consumption.

With this and other objects in view, as will more 'fully hereinafter appear, the invention consists in certain no vel features of constructionl and arrangement of parts, hereinafter "fully described, illustrated. in the accompanying drawings, and particularly pointed out in the appended claims, it being` understood that various changes in the Aliorm, proportions, size, and minor details of the structure may be made without departing from the spirit or sacrificing any of the advantages of the invention.

ln the accompanying drawings, Figure .l is a longitudinal sectional view of an air and gas mixer constructed in accordance with the invention. Fig. 2 a transverse section ol' the saine on the line 2 2 of Fig. l..

Similar numerals ol" reference are employed to indicate corresporiding parts throughout both ligures of the drawings.

ln carrying ont the invention l employ a casing 25, within which is a ring 26, preterablyv concentric with the casing, and between the ring and casing extend lnirtitions 27, that divide the animi-ar space into two separate chambers, to one oi which air is admittedy through an opening 28, the opposite opening 2E) being connected to the gas-supply pipe 23. The ring 26 is provided with a large number el ports 80, and its inner surlace lorms a seat tor the reception o'l a rotary valve 31, that is rovided with two sets ot ports 32 and 33,

which may be brought into alinement with the ports 30, and thus admit both air and gas to the hollow central portion el.: the valve. One end of the valve is closed and its opposite end is provided with an opening` 36, that is at all times in communication with an opening 37, through which the mingled air and gas passes. The ports 32 33 are so disposed 32 are fully open the ports 33 will be fully closed, and vice versa, and said valve is prelierably connected by an arm 38 to an enginegovernor when the device is to be operated automatically. lf the mixed air and gas discharging through the opening 37 is too rich in carbon, the lever 3S is moved until the ports 32 are partially closed and the ports 83 partly opened,admitting a greater or less quantity ol air, and if the arm 3S is connected to the engii1egovernor the :mechanism is so arranged that in the event oi" the speed exceeding a predetermii'ied point the ports 33 will be opened wider than usual and the gas diluted in order to lessen its lorce and reduce the speed of the engine, and in some cases the gas may be wholly cut o'll` and air only admitted to the explosion-chamber.

l-la ving thus described the invention, what is claimed is l. ln an air and gas mixer, a casing having independent air and gas inlets, a ported ring within the casing, partitions dividing the space between the ring and casing into two chambers, a hollow ported valve arranged within said ring and forming a chamber in which the entering volumes of air and gas are intermingled, said valve being revolubly adjustable to alter the relative ell'ective areas oi the ports through which the gas and air may pass into the inixing-cliaanber, and an outlet leading lfrom said mixi11g-chamber.

2. The combination in an air and gas mixer, oit a casing, a ported ring disposed, concentrically within said casing, partitions extending be tweonthe ring and casing and di viding the space between the two into two chambers, one oi.l which is open te an air, and the other to a gas supply, a hollow valve disposed within the ring and provided with a plurality of ports which may be adjusted with relation to the ports 30 that as the ports.

relatively to the ring-ports, the interior of l In testimony that I claim the foregoing as the valve forming a mixing-space for the Ktir l my own l have hereto affixed my signature and gas entering thereinto, one end of' said l in the presence of two Witnesses.

valve being closed7 and the other being proy vided with an opening for the discharge of Wvitnesses:

JAMES C. HARPER,

the mingled air and gas, and an operating- JOHN N. JOHNSTON, lever secured to the Closed end of the valve.

W. E. LYNCH. 

